A. It was made by his uncle. B. He always takes it with him. C. He borrowed it from his uncle. D. He got a seat free for his cello. 参考答案:B 答案解析:对话里提到他无论走到哪里,一路上都是随身携带大提琴,形影不离。
第7题: [单项选择]下列哪一项不是卵巢实质性恶性肿瘤() A. 绒毛膜上皮瘤 B. 无性细胞瘤 C. 实性畸胎瘤 D. 内胚窦瘤 E. 肉瘤 参考答案:A 答案解析:卵巢绒毛膜上皮瘤为良性肿瘤。